| DBQ3000型塔机主臂杆纵向闭合裂纹强度的研究 |
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| 引用本文： | 曹贵和,王衡,曹宗杰.DBQ3000型塔机主臂杆纵向闭合裂纹强度的研究[J].吉林大学学报(工学版),1993(3). |
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| 作者姓名： | 曹贵和 王衡 曹宗杰 |
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| 作者单位： | 吉林工业大学
(曹贵和，王衡)，空军第二航空学院(曹宗杰) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 用SQCE理论,对DBQ3000型塔机主臂杆母材非接头和接头部位存在的纵向闭合裂纹进行了分析计算,圆满地解决了先天性表面纵向闭合裂纹对塔机主臂杆强度和寿命的影响问题。对含裂纹构件的安全评定做了新的尝试。
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| 关 键 词： | 塔机 裂纹 应力强度因子(SIF) |
The Crack Strength Analysis for the Main Arm of DBQ-3000 Tower Crane |
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| Cao Guihe,Wang Heng,Cao Zongjie.The Crack Strength Analysis for the Main Arm of DBQ-3000 Tower Crane[J].Journal of Jilin University:Eng and Technol Ed,1993(3). |
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| Authors: | Cao Guihe Wang Heng Cao Zongjie |
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| Abstract: | The longitudinal closed cracks located at joints and nonjoints on the main arm of DBQ-3000 tower crane are analyzed by the SQCE theory 1] in this paper. The problems of the influence of the cracks on the strength and the life of the tower crane are solved satistactorily. |
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| Keywords: | lower crane crack stress intensity factor |
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